Add meta_window_is_mapped, remove usage of window-private.h from mutter-window.c

mutter-window.c originally grew an #include "window-private.h" for
window->override_redirect, but that was just fixed.  However since
then it also ended up relying on a few other minor private bits.

To fix that, add meta_window_is_mapped, promote meta_window_toplevel_is_mapped
to public, and use the public MetaDisplay accessor.

src/compositor/mutter-window.c

@@ -10,7 +10,6 @@
 
 #include <clutter/x11/clutter-x11.h>
 
-#include "../core/window-private.h" /* FIXME: add meta_window_is_override_redirect */
 #include "display.h"
 #include "errors.h"
 #include "frame.h"
@@ -844,7 +843,7 @@ mutter_window_after_effects (MutterWindow *self)
   mutter_window_sync_visibility (self);
   mutter_window_sync_actor_position (self);
 
-  if (!priv->window->mapped)
+  if (!meta_window_is_mapped (priv->window))
     mutter_window_detach (self);
 
   if (priv->needs_repair)
@@ -1183,7 +1182,7 @@ mutter_window_new (MetaWindow *window)
 
   /* FIXME: Remove the redundant data we store in self->priv->attrs, and
    * simply query metacity core for the data. */
-  if (!XGetWindowAttributes (display->xdisplay, top_window, &attrs))
+  if (!XGetWindowAttributes (meta_display_get_xdisplay (display), top_window, &attrs))
     return NULL;
 
   self = g_object_new (MUTTER_TYPE_COMP_WINDOW,
@@ -1633,7 +1632,7 @@ check_needs_reshape (MutterWindow *self)
 #ifdef HAVE_SHAPE
   if (priv->shaped)
     {
-      Display *xdisplay = meta_display_get_xdisplay (priv->window->display);
+      Display *xdisplay = meta_display_get_xdisplay (meta_window_get_display (priv->window));
       XRectangle *rects;
       int n_rects, ordering;
 

src/core/window-private.h

@@ -456,8 +456,6 @@ void        meta_window_resize_with_gravity (MetaWindow  *window,
 /* Return whether the window should be currently mapped */
 gboolean    meta_window_should_be_showing   (MetaWindow  *window);
 
-gboolean    meta_window_toplevel_is_mapped  (MetaWindow  *window);
-
 /* See warning in window.c about this function */
 gboolean    __window_is_terminal (MetaWindow *window);
 

src/core/window.c

@@ -2321,6 +2321,18 @@ unmap_client_window (MetaWindow *window,
     return FALSE;
 }
 
+/**
+ * meta_window_is_mapped:
+ * @window: a #MetaWindow
+ *
+ * Determines whether the X window for the MetaWindow is mapped.
+ */
+gboolean
+meta_window_is_mapped (MetaWindow  *window)
+{
+  return window->mapped;
+}
+
 /**
  * meta_window_toplevel_is_mapped:
  * @window: a #MetaWindow

src/include/window.h

@@ -103,6 +103,8 @@ MetaStackLayer meta_window_get_layer (MetaWindow *window);
 MetaWindow* meta_window_find_root_ancestor    (MetaWindow *window);
 gboolean meta_window_is_ancestor_of_transient (MetaWindow            *window,
                                                MetaWindow            *transient);
+gboolean meta_window_is_mapped (MetaWindow  *window);
+gboolean meta_window_toplevel_is_mapped (MetaWindow  *window);
 gboolean meta_window_get_icon_geometry (MetaWindow    *window,
                                         MetaRectangle *rect);
 void meta_window_maximize   (MetaWindow        *window,